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Can we communicate Vijeo Citect SCADA with ABB PLC CPU Model PM864A

There is no special native driver available in Vijeo Citect for this ABB 864A CPU range . Using OPC protocol you can communicate with the ABB PLC with Vijeo Citect. For this OPC communication you can configure PLC as OPC server and Vijeo Citect SCADA can be configured as OPC client . The other way to communicate with Vijeo Citect, if you can add modbus TCP interface card to the processor and use Modbus TCP communication with Vijeo Citect .